That your ancestor was in Capt. Pinnell's company is very cool. At least you have a chronicle of your g-g-great grandfather's journey throughout the Civil War. Thanks for the info.
If you are interested, I have a two-part essay on Parsons and his division that is published in "Confederate Generals in the Trans-Mississippi, Vols. 1 & 2" (University of Tennessee Press, 2013 & 2015).